<div class="tr-button">
  <div class="group">
    <span class="transpond group-img onclick"></span>
    <span class="group-text">转发</span>
  </div>
</div>
<style type="text/css">
.transpond {
  background-image: url(/static/image/transpond.png);
  background-position: center;
  background-size: 30px 35px;
}
.tr-button {
  display: inline-block;
  color: #5aea78;
}
.tr-button:hover {
  background-color: #caffd54a;
  border-radius: 40px;
}
</style>